Zelfbouw Links

Sluiten VLF Projekten

Sluiten 136 kHz Projekten

Sluiten 472 kHz Projekten

Sluiten 500 kHz Projekten

Sluiten Multiband HF Projekten

Sluiten 160m Projekten

Sluiten 80m Projekten

Sluiten 60m Projekten

Sluiten 40m Projekten

Sluiten 30m Projekten

Sluiten 20m Projekten

Sluiten 17m Projekten

Sluiten 15m Projekten

Sluiten 12m Projekten

Sluiten 10m Projekten

Sluiten 6m Projekten

Sluiten 4m Projekten

Sluiten VHF Luchtvaart

Sluiten 2m Projekten

Sluiten 70cm Projekten

Sluiten 23cm Projekten

Sluiten 13cm Projekten

Sluiten 9cm Projekten

Sluiten 6cm Projekten

Sluiten 3cm Projekten

Sluiten 1,25cm Projekten

Sluiten EHF Projekten

Sluiten Antenne-aanpassingen

Sluiten Shack Accessoires

Sluiten Voedingen

Sluiten Meetinstrumenten

Sluiten µController Arduino

Junk Box Circuits

Sluiten Buizen

Sluiten Transistors 2N-Serie

Sluiten Transistors BC-Serie

Sluiten Transistors BD-Serie

Sluiten Transistors BF-Serie

Sluiten IC 74XX-Serie

Sluiten IC 74LSXX-Serie

Sluiten IC 74SXX-Serie

Sluiten IC LM-Serie

Sluiten IC TDA-Serie

HF Propagatie
Bezoekers

   Bezoekers

   Bezoekers online

Zoeken




RSS lezer - ARRL News

American Radio Relay League | Ham Radio Association and Resources


The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.


The K7RA Solar Update  Kijk naar?

Sunspot activity rose this reporting week, September 22-28, with
average daily sunspot numbers increasing from 68 to 105.1. But solar
flux? Not so much. Average daily solar flux rose from 134.3 to
138.4.

So, the sunspot average rose 55% and solar flux only 3%. I usually
expect the numbers to track more closely.

New sunspots appeared on September 22 and 23, and one more on
September 27. On Thursday nig...

... / ... Lees meer...

(30/09/2022 @ 15:15)
Online voting for ARRL Southeastern Division Election  Kijk naar?

In the next couple of days, ARRL members in the Southeastern Division will receive an email message indicating that the online voting site for the 2022 ARRL Southeastern Division Election is now open. The message will include instructions to access candidate statements, the ballot, and to vote.

A third party was selected by the ARRL Ethics and Elections Committee to conduct the election: Electio...

... / ... Lees meer...

(29/09/2022 @ 22:10)
Amateur Radio Operators Continue Response to Ian  Kijk naar?

As Hurricane Ian, now a tropical storm, makes its way across Florida, amateur radio operators continue to provide communications support for weather updates and requests for assistance.

The hurricane made landfall at 3:00 PM Eastern Time on Wednesday, September 28, 2022, just south of Tampa, Florida, as a Category 4 hurricane with winds of 150 miles per hour. Millions of residents are without po...

... / ... Lees meer...

(29/09/2022 @ 16:39)
(29/09/2022 @ 14:48)
FCC Grants an ARRL Emergency Request to Permit Higher Data Rate Transmissions for Hurricane Relief Communications  Kijk naar?

The Federal Communications Commission (FCC) has granted an ARRL emergency request for a 60-day temporary waiver intended to facilitate amateur radio emergency communications for hurricane relief. The waiver was adopted on Tuesday, September 27, 2022, and immediately permitted amateur radio operators supporting amateur data transmission for Hurricane Ian traffic to employ a higher symbol rate fo...

... / ... Lees meer...

(28/09/2022 @ 13:34)
Ham Radio Operators Get Ready as Hurricane Ian Strengthens  Kijk naar?

ARRL Amateur Radio Emergency Service® (ARES®) groups and volunteers have ramped up preparations as the National Hurricane Center (NHC) reported that Hurricane Ian continues to quickly intensify. As of 11:00 AM Eastern Time on Tuesday, September 27, Ian is a Category 3 hurricane located 305 miles south-southwest of Sarasota, Florida with maximum sustained winds of 115 mph and moving toward the n...

... / ... Lees meer...

(27/09/2022 @ 17:27)
The K7RA Solar Update  Kijk naar?

Geomagnetic disturbances were down this week, but so were sunspot
numbers and solar flux.

Average daily sunspot numbers declined from 92.7 to 68, and average
daily solar flux from 141.3 to 134.3.

On September 22 the sunspot number was 99, well above (by 31 points)
the average for the previous seven days, a promising indication. We
hope it may signal a trend.

But Solar Cycle 25 progresses, a bit better...

... / ... Lees meer...

(23/09/2022 @ 16:41)
Amateur Radio Operators Track Hurricane Fiona  Kijk naar?

The National Hurricane Center (NHC), the Hurricane Watch Net (HWN), the Voice over Internet Protocol (VoIP) Hurricane Net, and the Salvation Army Team Emergency Radio Network (SATERN) all have been engaged in tracking Hurricane Fiona.

 

Amateur radio operators have been reporting weather conditions since Monday, September 19, 2022, and have received positive feedback on their assistance. The VoIP...

... / ... Lees meer...

(23/09/2022 @ 00:14)
(20/09/2022 @ 16:44)
The K7RA Solar Update  Kijk naar?

Solar activity bounced back this reporting week, September 8-14, when average daily sunspot numbers jumped from 68 to 92.7, and average solar flux from 125.8 to 141.3.

Fewer CMEs and flares were evident, with average planetary A index declining from 24.6 to 10.7, and middle latitude numbers from 17.4 to 10.6.

New sunspot groups appeared, one on September 8, three on September 10, and one more on ...

... / ... Lees meer...

(16/09/2022 @ 16:07)
Amateur Radio Helps Disabled Sailboat to Port  Kijk naar?

On September 7, 2022, Jeanne (Jan) Socrates, VE0JS/MM / KC2IOV, and her sailboat, the SV Nereida, set sail from Cape Flattery, the northwesternmost point of the contiguous US. She was on her way to visit friends in San Francisco, California, but 2 days of 35 knot winds and storms left her sailboat disabled and her onboard radio equipment marginally operational. Amateur operators in New Mexico, ...

... / ... Lees meer...

(16/09/2022 @ 00:16)
(15/09/2022 @ 21:51)
ARRL Headquarters is Closing Early on Friday, September 16, 2022  Kijk naar?

ARRL  The National Association for Amateur Radio® will close early on Friday, September 16, 2022, at 12 PM Eastern time (1600 UTC), for a staff event.

The ARRL Headquarters lobby & store, and W1AW will be open to visitors from 8 AM to 12 PM EDT on Friday.

There will be no interruption to W1AW bulletin or code practice transmissions. W1AW will follow its regular transmitting schedule on Friday.

Th...

... / ... Lees meer...

(15/09/2022 @ 21:06)
The K7RA Solar Update  Kijk naar?

 This week (September 1 to 7) two new sunspot groups emerged on September 1, two more on September 2, one more on September 5, another on September 6 another on September 7 and one more on September 8 when the sunspot number rose to 75, 7 points above the average for the previous seven days.

But average daily sunspot numbers declined from 74.9 to 68, while average daily solar flux rose just two ...

... / ... Lees meer...

(10/09/2022 @ 01:01)
QSO Today Virtual Ham Expo Returns September 17 - 18  Kijk naar?

The 5th QSO Today Virtual Ham Expo is September 17 - 18, 2022. The fully-interactive and full-featured virtual ham radio convention will provide great interactive presentations, new content, and excellent networking opportunities including 50+ amateur radio presentations on a wide variety of subjects.

Check out the full list of Presentations and get the downloadable schedule.

For the first time...

... / ... Lees meer...

(10/09/2022 @ 00:39)

Laatst import : 02/10/2022 @ 06:38

Google Ads


^ Boven ^